Clinical Study
In Vivo Disintegration of Four Different Luting Agents
Table 1
In vivo disintegration studies on luting cements.
| Author, year | Exposed cement surface area | Duration | Cement | Disintegration |
| Norman et al. [2], 1969 | Large cavity extending from lower premolar to molar region | 30 days | ZnP S ZOE/EBA | 5–30 mg/cm2 0 mg/cm2 20–100 mg/cm2 |
| Richter and Ueno [3], 1975 | 3 mm diameter | 12 months | SP ZnP ZOE/EBA PC | SP<ZP<PC ≃ ZOE/EBA |
| Osborne et al. [4], 1978 | 0.82 mm diameter | 6 months | SP ZnP ZOE/EBA PC | SP<ZP<PC< ZOE/EB |
| Mitchem and Gronas [5], 1978 | 2 mm diameter | 6 months | GIC SP ZnP PC | 200 μm 350 μm 600 μm 930 μm |
| Sidler and Strub [20], 1983 | 0.8 mm diameter | 14 months | GIC ZnP | 40–100 μm 500 μm |
| Roulet and Wälti [8], 1984 | 1.5 mm diameter | 28 months | GIC R (Adaptic) R (Adaptic + Soflex disc) | 0,041 mm 0,0086 mm 0,01 mm |
| Phillips et al. [19], 1987 | 0.8 mm diameter | 6–12 months | GIC SP PC (High ratio of powder to liquid) ZnP | GIC<SP<PC< ZP |
| Pluim et al. [7], 1984 | 1.3 mm diameter | 6 months | GIC ZnP PC | 0,5–1 μm/week 20–22 μm/week 18–30 μm/week |
| Hersek and Canay [10], 1996 | 5 mm diameter | 8 months | PC ZnP GIC | GIC<ZP<PC |
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ZOE/EBA, zinc oxide eugenol reinforced with ethoxybenzoic acid; S, silicate cement; SP, silicophosphate cement; PC, polycarboxylate cement; ZnP, zinc phosphate cement; GIC, glass ionomer cement; R, composite resin.
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